The registration office is the market supervision authority of the jinghai district of tianjin city, located in the jinghai district of tianjin city and located in the village of yuan monkoi. The legal entity is represented by the jinghai district monitoring authority of tianjin city, whose activities include the manufacture of fast-fixed items; the processing of mechanical parts; the processing, sale of auto parts; the processing and sale of hardware tools, moulds, valves, electric machines, agricultural machinery parts, the production, processing and sale of environmental equipment, electrical parts and components; the manufacture of larynx; the import and export of goods or technology (with the exception of goods and technologies prohibited by the state or involving administrative approval); the construction and management of photovoltaic power stations. (projects subject to legal approval may not operate without the approval of the relevant department)